Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: torque@rpm of n·m (lb·ft)@4050 has what code?
 ###Tabelas: CREATE TABLE -_106_seats (-_106_seats_id AUTO_INCREMENT PRIMARY KEY, Riding VARCHAR, Candidate's Name VARCHAR, Gender VARCHAR, Residence VARCHAR, Occupation VARCHAR, Votes INT, Rank VARCHAR) CREATE TABLE season_12:_2008_2009 (season_12:_2008_2009_id AUTO_INCREMENT PRIMARY KEY, Series Ep. VARCHAR, Episode INT, Netflix VARCHAR, Segment A VARCHAR, Segment B VARCHAR, Segment C VARCHAR, Segment D VARCHAR) CREATE TABLE duratec_ti-vct (duratec_ti-vct_id AUTO_INCREMENT PRIMARY KEY, Code VARCHAR, Years VARCHAR, Displacement (bore x stroke)/Type VARCHAR, Power@rpm VARCHAR, torque@rpm VARCHAR, Compression (:1) VARCHAR) CREATE TABLE exhibition_schedule (exhibition_schedule_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Home Team VARCHAR, Score VARCHAR, Visiting Team VARCHAR, Stadium VARCHAR) CREATE TABLE cellular_concrete (cellular_concrete_id AUTO_INCREMENT PRIMARY KEY, Dry Density (kg/m3) INT, 7-day Compressive Strength (N/mm2) VARCHAR, Thermal Conductivity* (W/mK) VARCHAR, Modulus of Elasticity (kN/mm2) VARCHAR, Drying Shrinkage (%) VARCHAR)  
SELECT Code FROM duratec_ti-vct WHERE torque@rpm = n·m (lb·ft)@4050